Copper index methodology

Abstract

A computer-generated copper index usable as an investment benchmark for copper as an asset is based on a determination of eligible copper futures contracts based on an evaluation of backwardation or Contango, SCI excess return, and SCI total return.

We claim: 
     
         1 . A method using a computer, of providing a copper index for investors which comprises the steps of:
 (a) determining the Eligible Copper Futures Contracts, based on an evaluation of Backwardation or Contango,   (b) determining the value of SCI Excess Return, and   (c) determining the value of SCI Total Return as the product of SCI TR on the immediately preceding business day multiplied by one plus the sum of the day's SCI ER returns and one business day's interest from the hypothetical U.S. Treasury Bill portfolio.